| 沈吉,张祖还.325、326铀矿床成因研究[J].地质找矿论丛,1993,(3):71-80 |
| 325、326铀矿床成因研究 |
| GENESES OF URANIUM DEPOSITS NO. 325 AND NO. 326 |
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| DOI：10.6053/j.issn.1001-1412.1993.3. 007 |
| 中文关键词: 矿床成因 成矿物质来源 钠交代 构造控矿 |
| 英文关键词: |
| 基金项目:中科院矿床地球化学开放实验室资助项目 |
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| 中文摘要: |
| 325、326矿床位于ZG复式花岗岩体中段,属花岗岩型铀矿床,对其研究表明,两矿床成矿热液为粒间溶液与大气降水的混合热液,成矿物质主要来自花岗岩,部分来自寒武系地层,矿床形成与钠交代密切相关,并受构造控制. |
| 英文摘要: |
| The deposits No. 325 and No. 326 lie in the middle zone of ZG composite granite bodies. They belong to uranium deposits of granitic type. Before the ore-forming stage the mineralization fluid mainly came from the magama hydrothermal solution. In ore-forming stage the mineralization fluid was the mixture of magama hydrothermal fluid and meteoric water and after ore-forming stage, the meteoric water rain. Studying from isotopes of sulphur and lead made it clear that the ore-forming materials of the deposits mainly came from granite bodies and partly came from the stratum of Cambrian system which is around the deposits. The soda-metasomatism has importance to mineralization. It changed the physical and mechanical property of rock and cause uranium mobilization and transference. The structure controled the distribution of the mineral bodies. |
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